/Engine/Plugins/VirtualProduction/DMX/DMXEngine/Source/DMXRuntime/Public/Library/DMXEntityFixturePatch.h
Gets the starting channel of each cell attribute at given coordinate, relative to the Starting Channel of the patch.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="DMX|Fixture Patch") bool GetMatrixCellChannelsRelative ( const FIntPoint & CellCoordinate, [TMap](API\Runtime\Core\Containers\TMap)< [FDMXAttributeName](API\Plugins\DMXProtocol\FDMXAttributeName), int32 > & AttributeChannelMap )